Biblio

J. Lonholdt, “Environmental management in the tropics”. IWA Publishing, London, UK, 2004.

PAHO -Washington, DC, US, “Building better health : a handbook of behavioral change”. Pan American Health Organization (PAHO), Washington, DC, USA, 2003.

J. M. Colford, Eisenberg, D. M., Eisenberg, J. N. S., Scott, J., and Soller, J. A., “A dynamic model to assess microbial health risks associated with beneficial uses of biosolids. Phase 1”. IWA Publishing, London, UK, 2003.

A. P. Cotton, Sohail, M., and Cavill, S., “Operation, maintenance and sustainability of services for the urban poor”. Water, Engineering and Development Centre, Loughborough University of Technology, WEDC, Loughborough, UK, 2002.

N. Grant, Moodie, M., and Weedon, C., Sewage solutions : answering the call of nature, 2nd ed.nd ed. Machynlleth, UK: Centre for Alternative Technology (CAT), 2000.